An apparatus for delivering a fine spray mist for evaporatively or conductively cooling a localized area. The apparatus consists of a pressurizable container, a valve for activating the release of fluid from the container, a spray nozzle or a plurality of spray nozzles coupled to the valve, a pump for pressurizing the container, a belt for securing the device to a person, and a clip for attaching the mist nozzle in such a fashion that it directs the flow of mist in a hands free manner.
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1. A misting apparatus for cooling a local area in the vicinity of a person by evaporative cooling, comprising:
a pressurizable water tank having a water outlet and an inlet for filling said water tank; an inner tube extending within said water tank, said inner tube being in fluid communication with said water outlet; a pump for pressurizing the water tank removably mounted to said inlet of said pressurizable water tank to create a seal with said water tank; a flexible tube in fluid communication with the water outlet of the water tank, said flexible tube having a distal end and a proximal end, said proximal end connected to said water tank; a spray nozzle secured at the distal end of the flexible tube, said spray nozzle delivering a fine evaporative cooling mist of water in the vicinity of a person for cooling the person when pressurized water is communicated to the spray nozzle; and a valve between said water tank and said spray nozzle for controlling flow of water through said flexible tube.
7. A system for cooling a person, the system comprising:
a pressurizable water tank having a water outlet and an inlet for filling said water tank; an inner tube extending within said water tank, said inner tube being in fluid communication with said water outlet; a pump for pressurizing the water tank removably mounted to said inlet of said pressurizable water tank to create a seal with said water tank; a flexible tube in fluid communication with the water outlet of the water tank, said flexible tube having a distal end and a proximal end, said proximal end-connected to said water tank; at least one spray nozzle secured at the distal end of the tube, said spray nozzle delivering a fine evaporative cooling mist of water in the vicinity of the person when pressurized water is communicated to the spray nozzle; means for securing the water tank to the person; and a valve connected to said tube between said water tank and each said spray nozzle for controlling flow of water through said flexible tube.
4. The misting apparatus of
5. The misting apparatus of
8. The cooling system of
10. The cooling system of
11. The misting apparatus of
12. The cooling system of
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This application is a continuation of Ser. No. 08/802,072 filed on Feb. 19, 1997, now U.S. Pat. No. 5,775,590, which is a continuation of 08/664,302 filed on Jun. 10, 1996, now U.S. Pat. No. 5,620,140, which is a continuation of 08/324,872 filed Oct. 18, 1994, now abandoned.
Ser. No. 08/324,872 is a continuation in part of my previous application, Ser. No. 07/927,231 filed on Aug. 7, 1992 now U.S. Pat. No. 5,535,951. The previous device introduced a fine mist into the dry air to lower ambient temperature. The previous device supplied the mist by means of a continuously pressurized tank.
The current invention delivers a fine mist spray to cool a localized area by evaporative cooling also, but with the following improvements:
The new device allows for the introduction of ICE or ice water allowing the device to work efficiently in humid environments through the process of conductive cooling as well as evaporative cooling in dry climates. The new device also incorporates a hand pump which allows the device to be filled in a remote location. According to the preferred embodiment of the device, the pressurizable tank may be of sufficient size and in acceptable packaging to make the entire apparatus portable by hand carrying, adapted to be worn in a back-pack or fanny pack configuration or be substantially free standing.
The only known portable spraying device for delivering humidity into a dry atmosphere is my previous invention. Other devices known in the spraying apparatus art are a variety of devices for directing and applying a spray of fluid to an object, such as crops, lawns, weeds, or fire. Generally, these devices may be broadly classified into two categories. The first group, consisting of motor driven sprayers, is represented by U.S. Pat. No. 3,421,697 issued to Marks on Jan. 14, 1969, U.S. Pat. No. 3,539,110 issued to Kobayashi on Nov. 10, 1970, U.S. Pat. No. 3,802,511 issued to Good, Jr. on Apr. 9, 1974 and U.S. Pat. No. 4,651,903 issued to Pagliai on Mar. 24, 1987. This first group of patents broadly discloses portable back-pack like sprayers however none discloses a fannypack style that can be worn for hands free operation. The second group, consisting of non-motor driven sprayers, is represented by U.S. Pat. Nos. 2,911,157 issued to Converse on Nov. 3, 1959, U.S. Pat. No. 3,352,364 issued to De Coste on Nov. 14, 1967, U.S. Pat. No. 3,993,245 issued to Smith on Nov. 23, 1976, and U.S. Pat. No. 4,688,643 issued to Caner et al on Apr. 25, 1987. Of this second group, only patents issued to Coste and Smith disclose a sprayer having a pressurizable container and a spray nozzle. In the De Coste patent, the fluid in the container is directly pressurized by introduction of pressurized air through an air valve into the fluid container. Upon exhaustion of the air pressure within the container, the container must be re-pressurized from a pressurized air source. The Smith patent discloses a spraying device having a pressurizable container where a manual air-pump is used to pressurize the fluid the container. My previous invention discloses a pressurizable container but can be substantially improved by including a manual air pump to pressurize the fluid in the container.
Thus, an examination of the art, reveals that there is no known spray cooling apparatus for evaporatively cooling a localized area which employs a pressurizable container, a valve for activating a flow of pressurized fluid from the lank through a nozzle or a plurality of nozzles and a fanny pack style bag for wearing the device in a hands free operative style, and allowing for the introduction of ice cubes and or ice water.
Accordingly, it is a broad aspect of the present invention to provide a misting apparatus which utilizes a tank container such as that described in U.S. Pat. No. 3,993,245 having a pressurizable container having a manual air-pump to pressurize the fluid within the container, a valve for activating the flow of pressurized fluid through a nozzle or plurality of nozzles.
FIG. 1 is a perspective partial cross sectional view of the missing apparatus of the present invention.
FIG. 2 is a partial cross sectional view of the pump and cap assembly.
With reference to the accompanying figures, in which like structural and functional features are identified by like reference numerals, there is disclosed the misting apparatus 100 of the present invention. With particular reference to FIG. 1, misting apparatus 100 consists generally of a fluid tank 1, a flow valve 12 connected to a fluid outlet 20 of the tank, and a spray nozzle 10 connected to the flow valve 12 by a flexible or rigid tube 8.
Fluid tank 1 defines an inner fluid chamber 13 having a fluid outlet 14. A removable cap 200 in FIG. 2 allows for filling the inner chamber 13 with a fluid and a method for sealing the tank 1. A belt 2 is attached to the tank 1 or in another preferred embodiment the belt is attached or part of a bag housing the entire device. A buckle 3 connected to bell 2 secures the device around a persons waist. A clip 11 is secured around the tube and is of alligator clip style construction for attaching the device to a persons hat or other piece of clothing allowing hands free operation of the apparatus.
With reference to FIG. 2, pump apparatus 200 is comprised of a threaded cap 20 which creates a seal with the pressurizable tank 1 of FIG. 1 when O-ring 18 is sandwiched between the two. A tubular cyclinder 16 allows the passage of air from outside to the inner chamber 13, Air enters the inner chamber 13 through one way valve 17. A cup seal 15 creates an air tight seal forcing air through tube 16. The cup seal 15 allows air to by pass itself on the up stroke refilling tube 16 with air. A shaft 21 is attached to the cup seal 15 and to pump handle 22 thereby allowing movement of the cup seal 15 when die pump handle 22 is moved.
It will be understood by those skilled in the art, that pressurization of inner chamber 13 creates a pressure differential that forces water out through inner-tube 9 and out through outer tube 8 and the spray nozzle when fluid valve 12 is opened.
In accordance with the broad aspects of the present invention, there has been disclosed and described, and hereinafter claimed, a misting apparatus adapted to deliver a spray of fluid and evaporatively cool and or conductively cool a localized area. While the invention has been particularly shown and described in reference to the preferred embodiments thereof, it will be understood by those skilled in the art that changes in form and details may be made without departing from the spirit and scope of the invention.
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